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Overlaying histograms with ggplot2 in R

... concrete example with some output: dat <- data.frame(xx = c(runif(100,20,50),runif(100,40,80),runif(100,0,30)),yy = rep(letters[1:3],each = 100)) ggplot(dat,aes(x=xx)) + geom_histogram(data=subset(dat,yy == 'a'),fill = "red", alpha = 0.2) + geom_histogram(data=subset(dat,yy == 'b'),fi...
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Is it better to call ToList() or ToArray() in LINQ queries?

...e results. – jpierson Jun 28 '10 at 20:04 137 If the Count is known in advance, the performance i...
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How to assign colors to categorical variables in ggplot2 that have stable mapping?

... | edited Apr 3 '16 at 16:20 Axeman 25.5k66 gold badges6363 silver badges7171 bronze badges answered Aug...
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Regex to replace everything except numbers and a decimal point

... answered Dec 31 '10 at 20:34 ChanduChandu 72.1k1616 gold badges118118 silver badges122122 bronze badges ...
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How to convert ‘false’ to 0 and ‘true’ to 1 in Python

...n Pieters♦Martijn Pieters 839k212212 gold badges32203220 silver badges28102810 bronze badges ...
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More elegant “ps aux | grep -v grep”

... solution. – Johnsyweb Oct 1 '14 at 20:33 3 Correct me if I am wrong, but this also should work o...
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android ellipsize multiline textview

... 20 Answers 20 Active ...
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What is the difference between gsub and sub methods for Ruby Strings

... 209 The g stands for global, as in replace globally (all): In irb: >> "hello".sub('l', '*'...
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git-checkout older revision of a file under a new name

... ./<path> syntax (or ../path to go up from current directory). Edit 2015-01-15: added information about relative path syntax You can get in most cases the same output using low-level (plumbing) git cat-file command: prompt> git cat-file blob HEAD^:main.cpp > old_main.cpp ...
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Calculating moving average

... | edited Aug 11 '17 at 20:04 Frank 62.4k88 gold badges8181 silver badges157157 bronze badges answered...